Tension-pulley-supporting bracket.



I c. E. SPAULDING. TENSION F ULLEY SUPPORTING BRACKET.

I APPLICATION FILED NOV. 16, 1907.

A TTORNE Y.

Patented Apr. 20, 1915.

2 SHEETS-SHEET 1 INVENTOR.

BY 62M.

WITNESSES:

THE NORRIS PETERS CO.. PHOTc-LITHQ, WASHING TON, D. c.

01E. SPAULDING.

TENSION PULLEY SUPPORTING BRACKET.

APPLICAHON FILED NOV. 16, 1907.

1,136,626. Patented Apr. 20, 1915.

2 SHEETS-SHEET 2 WITNESSES IN V EN TOR.

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% ilT RNE 1H5 NORRIS PETERS Ou PHOTO-LITHQ. WASHINGIDN. I"

CARL E. SPAULDING, OF LOWELL, MASSACHUSETTS.

TENSION-PULLEY-SUPPORTING BRACKET.

Specification of Letters Patent.

Patented Apr. 20, 1915..

Application filed November 16, 1907. Serial Ha -102,400.

To all whom it may concern Be it known that I, CARL E. SPAULDING, a citizen of the United States, residing at Lowell, in the county of MiddleseX, State of Massachusetts, have invented certain new and useful Improvements in Tension-Pub ley-Supporting Brackets, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention has relation to the means of supporting tension and guide-pulleys, and the like, such as are employed with the spindle-driving bands or tapes of spinning machines, twistingframes, and in other like connections.

An embodiment of the invention is illustrated in the drawings, in which latter,

Figure 1 shows in side elevation a tensionpulley and a bracket or support therefor constructed for application to a spinning-frame, twisting frame, orthe like. Fig. 2 is an elevation looking from the right-hand side in Fig. 1. Fig. 3 shows an opposite side elevation of the parts which are shown in'Fig.

1. Fig. l is an elevation looking from the right-hand side in Fig. 8. Fig. 5, Sheet 2, l

is a'view in transverse section on line 5, 5, of Fig. 8. Fig. 6, Sheet 2, is a side elevation of the principal member of the forked bracket or support, shown separately. 'Fig. 7 is an elevation looking from the left-hand side in Fig. 6. Fig. 8 is aside elevation of the second member or arm of the said bracket or support. Fig. 9 is'an elevation looking from the right-hand side in Fig. 8.

Figs. 10 and 11 are views showing one of the bearing-blocks detached.

Having reference to the drawings,at 1, Figs. 1 to 5, is a tension-pulley of the kind commonly in use in connection with the fiat spindle-driving bands or tapes that are employed in somevarieties of spinning-frames, twisting-frames, etc.; 2, 2", are opposite arms of the bracket in which the said tension-pulley is mounted, the said arms receiving the tension-pulley between them. In practice, the bracket is attached to a suitable support (not shown) in the spmnlngframe or other machine in which the device is employed, by means of a screw or bolt passed through the hole 2.in the outer or upper end of the arm 2 of the bracket. lfhe tension-pulley is provided, as usual, with journals 1*, 1 Fig. 5, projecting from opposite'sidesof the same, and the arms of the brackets are furnished with bearing-blocks 3, 3, each of which is formed with the hole or socket 3*, Figs. 5, 10 and 11, which receives one of the said journals. By means of said journals and bearings the tensionpulley is supported in the bracket. The hole or socket 3 in each bearing-block is cylindrical, and extends longitudinally of the block. Each block is contained in a pocket 2, Figs. '7, 8 and 9, in the corresponding arm of the bracket, the opening by which the block is introducedinto and removed from the pocket being at the side of the arm which is next the tension-pulley.

' In order to restrain the tension-pulley from side-play, the exposed inner ends of the two bearing-blocks are arranged to engage with shoulders 1", 1", Fig. 5, at opposite sides of the body of the tension-pulley, such shoulders being located at the inner ends of the journals 1 1 The said shoulders are constituted in the present instance by the outer sides of the nuts 1,-1, that are screwed on the threaded middle portion of the central shaft of the tensionpulley. The said nuts hold the body of the tension-pulley in place on the shaft, washers 1 1 Fig. 5, being interposed between the nuts and the opposite sides of the body. The bearing-blocks, which in'some cases in practice may be of any suitable material, character, and construction, preferably are made of wood, saturated with oil, although they may be saturated or otherwise charged with other suitable lubricant. Beyond the periphery of the tension-pulley, the arms 2 2 bend toward each other, and portions thereof overlap each other, as shown in Figs. 1 to 4:, the overlapping portions 2 2, being halved to reduce the combined thickness, as shown clearly by the detail views, Figs. 6 to 9 of Sheet 2, and being connected together by means of a rivet 4, Figs. 1 to 4, serving as a pivot. The stem of the saidrivet passes through holes2 ,2 in the said overlapping portions of the arms,its spread or upset ends engaging with the outer faces of the arms. The rivet holds the meeting faces of the overlapping portions of the arms in contact with each other. It constitutes a pivotal connection for the two arms, providing for swinging movements of one thereof with relation to the other to carry the free extremities of the arms transversely toward and from each other. The extent of the opening movement is limited through contact of the outer side of the arm 2 with the raised stop at 2, (Fig. 7) on the arm 2, and that of the closing movement is limited by contact of shoulder 2 Figs. 8 and 9, of the arm 2 with.

the shoulder 2', Fig. 7, of the arm 2.

The arms have capacity, for relative movement suflicient in extent to enable them to be separated far enough to receive the tensionpulley between them, with its journals in position to enterthe holes or sockets of the bearing-blocks, and to permit one of the said journals to be entered into the hole or socket of the bearing-block of one of the arms. The tension-pulley having been placed between the separated arms, and one journal therof having been inserted into one of the bearings, the arm 2* may be swung toward the arm 2 again, sothat the other journal shall be received in the other bearing, and so that the ends of the bearing blocks projecting from the pockets 2 2 shall approach closely, or make contact with, the shoulders l 1*. Conversely, the arm 2 may be swung apart from the arm 2 sufficiently to permit of removal of the tensionpulley, or so as to withdraw one hearing from the corresponding journal to permit the driving-band or tape to be applied to the tension-pulley, or to be disconnected therefrom and withdrawn. The same capacity provides for inspection of the respective bearing-blocks, and for removal and replacement thereof. Vihen the parts are in working relations with respect to one another, the-journals'and bearings are protect ed from'dust and flyings. The frictional engagement of the meeting-faces of the arms 2, 2 with each other, is sufficient to keep such arms in their closed working position with the tension-pulley betweenthem, and also to hold them in an opened condition as long as may be required, after they have been separated from each other; In the separated condition of the arms, the tension-pulley maybe removed or replaced, or the driving-band or tape may be placed on or taken off from the tension-pulley,'or the required attention may be paid to the bearingblocks, after which by moving the arms reversely into their normal relation the parts may be restored to Working condition.

It will be observed that the hole or opening 2 in the upper end portion or arm 2 .of the bracket is a transverse one to enable the bracket to be attached to its support on the spinning frame or other machine to which the device is to be applied. It will also be observed that the recesses or pockets 2 at the end portions of the fixed and pivoted arms 2 and 2 are square or polygonal in form so as to hold the bearing blocks 3 non-' rotatively in place, the said recesses or pockets being closed at their outer sides to prevent displacement of said bearing blocks bracket and tension-pulleyshall occupy a slightly inclined position corresponding with the direction in which the band or tape should travel. In a spinningframe, the

tension-pulleys are arranged right and left, 7

as it may be termed. Consequently, the two opposite faces of the arm 2 areinclined in opposite directions, as shown, in order that a bracket and its tension-pulley placed at one point in the length of a spinning-frame may be made to incline transversely in one 7 direction by causing one face 2 to rest against the proper surface of the support,

and a bracket and tension-pulley placed at an opposite point in the said length may be caused to incline transversely in the oppositedirection by causing the other face 2 of the bracket to make contact with a face of the support.

While I have is shown in the drawings, I do not limit 'myself in all respects'thereto in the case of all embodiments of the principles of the.

invention.

Having thus which I have thus far contemplated embodying the invention, I claim as my invention M A tension-pulley supporting-bracket having a fixed armand a pivoted arm both of which are provided with bearing blocks projecting inward beyond the pockets 'contain-' ing said bearing blocks, combined with a tension pulley having fixed journals fitting said blocks and provided with shoulders. abutbeen careful to describe fully and completely the construction which explained'the best form in ting against the inwardly projecting inner ends of said-blocksto limit lateral'movement of the pulley; whereby the pivoted arm may be swung aside to unlock said pulley when it is desired to remove or, replacethe same or to. permit the driving band or tape to be re-,

moved or replaced, andwhereby also lateral movements of the pulley in its hearings will be prevented.

Intestimony whereof, I afiix my signs-- ture in presence of two witnesses.

CARL E. SPAULDING.

Witnesses: l

CHAS. F. RANDA EDITH J. ANDERSON.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, e

- Washington,.D.C. j V V V. 

